Private companies are increasingly challenging national space agencies in a new space race, which comes with great opportunities but also huge risks.
We're on the cusp of being able to consistently launch and land rockets, greatly reducing the cost of space travel. But how long before there's a Millennium Falcon in every garage?
The 50th anniversary of Luna 9's first soft moon landing reminds us how difficult landing a spacecraft is.
Space is now big business. But is that good – or bad – news for NASA?